Piano-stool.



No. 889,88 PATENTED AUG.28, 1906.

- A. PYLE.

. PIANO STOOL.

ABPLIOATION FILED AUG. 22, 1905.

JlrthurPy iz M GEM 8 4 C. y

UNITED STATES ARTHUR PYLE, OF REDKEY, INDIANA.

PIANO-STOOL.

Specification of Letters Patent.

Patented Aug. 28, 1906.

Application filed August 22,1905. Serial No. 275,284.

To all whom it may concern.-

Be it known that I, ARTHUR PYLE, a citizen of the United States ofAmerica, residing at Redkey, in the county of Jay and State of Indiana,have invented new and useful Improvements in PianoStools, of which thefollowing is a specification.

This invention relates to improvements in piano-stools and similararticles, the object of the invention being to provide simple andeffective means whereby the seat of the stool may be quickly andconveniently locked in adjusted position and released for a practicallyinstantaneous adjustment to the desired height.

The preferred embodiment of the invention is illustrated in theaccompanying drawings, in which Figure 1 is a central vertical sectionof the stool, and Figs. 2 and 3 are respectively a bottom plan View ofthe upper clamping member and a top plan view of the lower clampingmember.

Referrin now more particularly to the drawings, the numeral 1 designatesthe frame of the stool, comprising ahead 2, supported by legs 3, whichare joined and reinforced by suitable braces 41. Supported by the head 2is a box or casing 5, provided with a guidetube 6, extending downwardlythrough said head. This tube receives a sliding stem 7, depending from astool-seat 8. ,Within the box or chamber 5 are arranged clamping devices9 and 10, arranged one above the other. Each of these devices is in theform of a ring or clamping-body 11, provided at one side with anoperating-handle 12, projecting outwardly through a slot or opening 13in one side of the box or chamber 5. The upper clamping member 9 isprovided on its under side adjacent to its handle with a lug 14, whilethe lower clamping member 10 is provided upon its under side at a pointdiametrically opposite its handle with a lug 15. The lug 14 of themember 9 rests upon the upper surface of the member 10 adjacent to thehandle thereof, while the lug 15 of the handle 10 rests upon the bottomwall of the box or chamber 5. These lugs normally hold the clampingmembers tilted in reverse direction at an angle to the stem 7, whichpasses through the openings in said clamping members, the walls of whichopenings are suitably inclined to grip the stem and thereby clamp thesame in adjusted position when the lugs are tilted or disposed ataninclination to each other, as shown in Fig. 1. Upon gripping thehandles 12, however, the member 10 may be tilted up to a horizontalposition on its lug 15 and the member 9 rocked to a similar position onits lug 14, thus disposing the openings in said members at right anglesto the stem, permitting the latter to be moved freely therethrough. Itis apparent that when the members are so disposed the seat 8 may beraised or lowered and that then upon releasing the handles 12 theclamping members will drop by gravity to their normal inclinedposition'and clamp or look said stem against movement, thereby holdingthe seat in adjusted position.

A simple and effective construction of 10 oking mechanism is thusprovided by means of which the seat may be readily released foradjustment and locked after adjustment, the construction of the clampingdevices permitting the operation of adjusting and locking the stool-seatto be practically instantaneously accomplished.

Having thus described the invention, what is claimed as new is 1. Astool comprising a frame, a seat having a stem slidably mounted in theframe,and cooperating clamping members carried by the frame and havingopenings for the passage of said stem therethrough, said members beingnormally arranged at an angle to each other to engage and clamp thestem, one of the clamping members being provided with a lug arranged torock upon the frame and the other with a lug to rock upon thefirst-named clamping member, whereby the clamping members may be tiltedin parallel relation to release the stem and permit the seat to be adjusted.

2. A stool comprising a frame, a seat having a supporting memberslidably adjustable on the frame, and suitably-supported clampingmembers carried by the frame and each having an opening for the passageof the supporting member, said clamping members being provided atdiametrically opposite points. with lugs for supporting them at an angleto the supporting member to lock the latter from movement and on whichsaid clamping members are adapted to tilt to a parallel position torelease said supporting member.

3. A stool comprising a frame, a seat having a supporting memberslidably adjustable on the frame, suitablyhoused clamping memberscarried by the frame and each com ing member, and. handles applied tothe prising a ring having an opening for the pasclamps. IO sage of thesupporting member, said rings be- In testimony whereof I aflix mysignature ing provided at diametrically opposite points in presence oftwo witnesses.

with lugs for supporting them at an angle to ARTHUR PYLE.

the supporting member to lock the latter from Witnesses:

movement and on which said rings are adapt- CLARK RATHBURN,

ed to tilt to a position to release said support- K. L. THOMAS.

